家Р Historic adj 有历史意义的Рplete v. 完成Р complete sth./doing sth.РE.g.It takes several weeks plete everything.完成这一切需要花费几周的时间。Р plete her homework early in the morning.她一大早就把作业完成了。Р I plete writing the letter within an hour.我一定要在一小时内写完信。РCompletely adj, 完整的,完全的РE.g. Is this plete story?这是一个完整的故事吗?Р I plete confidence in him.我完全信任他。Р31.be used for...被用来做……,+n/doing=be used to do sth.РE.g. Clothes are used for keeping=to keep warm.衣服用来保暖Р Wood can be used for building=to build houses.木材可以用于建房子。Р辨析:be used for, be used as, be used by РBe used for 被用来做,for表目的或用途,后接名词或动名词РBe used as被用作…… As 介词,“作为”其后一般接名词,强调用途РBe used by 被……使用by介词,“被,由”,后接动作的执行者。РE.g. Knives are used for cutting things.刀子是用来切东西的。Р The box is used as a table.这个箱子被当作桌子使用。Р The tools are used by the workers in the factory.这家工厂的工人使用这些工具。